Preparation of TiO2 nanotube/nanoparticle composite particles and their applications in dye-sensitized solar cells
Open Access
- 5 January 2012
- journal article
- Published by Springer Science and Business Media LLC in Nanoscale Research Letters
- Vol. 7 (1), 48
- https://doi.org/10.1186/1556-276x-7-48
Abstract
Efficiency of dye-sensitized solar cells [DSSCs] was enhanced by combining the use of TiO2 nanotubes [TNTs] and nanoparticles. TNTs were fabricated by a sol-gel method, and TiO2 powders were produced through an alkali hydrothermal transformation. DSSCs were constructed using TNTs and TiO2 nanoparticles at various weight percentages. TNTs and TiO2 nanoparticles were coated onto FTO glass by the screen printing method. The DSSCs were fabricated using ruthenium(II) (N-719) and electrolyte (I3/I3 -) dyes. The crystalline structure and morphology were characterized by X-ray diffraction and using a scanning electron microscope. The absorption spectra were measured using an UV-Vis spectrometer. The incident photocurrent conversion efficiency was measured using a solar simulator (100 mW/cm2). The DSSCs based on TNT/TiO2 nanoparticle hybrids showed better photovoltaic performance than cells made purely of TiO2 nanoparticles.Keywords
This publication has 17 references indexed in Scilit:
- Growth of Oriented Single-Crystalline Rutile TiO2 Nanorods on Transparent Conducting Substrates for Dye-Sensitized Solar CellsJournal of the American Chemical Society, 2009
- Deposition of a Thin Film of TiOx from a Titanium Metal Target as Novel Blocking Layers at Conducting Glass/TiO2 Interfaces in Ionic Liquid Mesoscopic TiO2 Dye-Sensitized Solar CellsThe Journal of Physical Chemistry B, 2006
- A review on highly ordered, vertically oriented TiO2 nanotube arrays: Fabrication, material properties, and solar energy applicationsSolar Energy Materials and Solar Cells, 2006
- Backside illuminated dye-sensitized solar cells based on titania nanotube array electrodesNanotechnology, 2006
- Importance of Blocking Layers at Conducting Glass/TiO2 Interfaces in Dye-sensitized Ionic-liquid Solar CellsChemistry Letters, 2006
- Use of Highly-Ordered TiO2 Nanotube Arrays in Dye-Sensitized Solar CellsNano Letters, 2005
- Solar Energy Conversion by Dye-Sensitized Photovoltaic CellsInorganic Chemistry, 2005
- Control of dark current in photoelectrochemical (TiO2/I––I3–) and dye-sensitized solar cellsChemical Communications, 2005
- Highly Efficient Dye-Sensitized Solar Cells with a Titania Thin-Film Electrode Composed of a Network Structure of Single-Crystal-like TiO2 Nanowires Made by the “Oriented Attachment” MechanismJournal of the American Chemical Society, 2004
- Intensity Dependence of the Back Reaction and Transport of Electrons in Dye-Sensitized Nanocrystalline TiO2Solar CellsThe Journal of Physical Chemistry B, 2000